20" x 25' EverClean™ R8 Insulated Premium Flexible Air Duct - Box

Product Highlights

Thermaflex Everclean Insulated Flex Duct - R8 - 20" X 25' Box
see more

Item #: 21331

Mfg #: 051920000003

What’s the price?
Sign in to view pricing, inventory, and place orders.

Product Highlights

EverClean is designed for use in custom built homes where improved indoor air quality (IAQ) is desired or required.
EverCleanflexible ducts perform well in low to high pressure cooling and heating systems and can be utilized in either supply or return sections. Specific applications include branch ducts and branch connections to or between mixing units, induction units, control or terminal units, and diffusion devices.
NFPA Standards Compliance allows installation lengths longer than the normal connector limitation.
And EverCleanprovides excellent efficiency in higher-pressure systems because its liner and reinforced, metallized vapor barrier work in combination to supply a double air seal.

California residents: see Proposition 65 Warning

Weight50.00 Pounds
Length24.63 Inches
Width30.63 Inches
Height24.63 Inches
Country of OriginUSA
Jacket MaterialFiberglass-Reinforced, Metallized Film Vapor Barrier
Vapor Transmission0.05 Perms
CertificationsGreenGuard Indoor Air Quality Certified and GreenGuard Children and Schools Certified
ColorPink, Silver
Comments/NotesUL Listed - USA & CAN
Core MaterialLaminated Polyester Film
FeaturesComplies with NFPA Standards 90A and 90B. Corrosion resistant steel wire helix. Fully lined for efficient air delivery. The outer vapor barrier is a jacket of fiberglass scrim reinforced metallized film laminate.
Fire RatingMax Flame Spread = 25
Inside Diameter20"
Maximum Air Flow6000 FPM
Maximum PressurePositive = 16" (4-10" ID) Negative = 2"
Maximum Temperature250°F (121.1°C)
Operating Temperature-20°F to 250°F (-28.8°C to 121.1°C)
Pressure RatingPositive = 16 Inches (4-10 in ID) 10 Inches (12-20in ID) Negative =2 Inches
Size20" x 25'
Warranty OfferedYes
ComplianceNFPA 90 A and 90 B
UL ListedYes
UL RecognizedYes

You are being redirected to the AHRI Directory website. The AHRI reference number has been copied to your clipboard.

Paste the number into the search box and click Search to obtain the certificate.